Doug,it's hard for me to believe "you" of all people are going to "need" something else that will allow you to fine tune your set-up any more than it already is !!
I already got the impression that you have the eye of a Bald Eagle,and the hands of a Vascular Surgeon.Not to mention the amazing degree of "Doug-osity",which is defined as audio knowledge on par with Michael Phelps' swimming ability!Ok,maybe I'm getting carried away...."that one" may belong to Raul!
So,why waste the money...go buy a few nice bottles of Barolo or a nice Australian Shiraz...."Downunder" can help with the wine selection -:)
Trust me,once under the influence of a half bottle you'll hear a big improvement in sound.Paul can knock off the other half!
Best